Pump



FIG. 1 is a perspective view of a pump showing my new design;

FIG. 2 is a front elevational view of FIG. 1, rear corresponds;

FIG. 3 is a side elevational view taken from the right of FIG. 1;

FIG. 4 is a top plan view of FIG. 1;

FIG. 5 is a bottom plan view of FIG. 1;

FIG. 6 is a side elevational view taken from the left of FIG. 1; and,

FIG. 7 is a section view on line 7--7 in FIG. 3. 

The ornamental design for a pump, as shown and described. 